Physical Optics… | NUST Entrance Test Physics

The appearance of colors in the soap (or oil) film results from:

Difficulty: Easy

A:

Dispersion

B:

Interference

C:

Reflection

D:

Refraction

Two sources are said to be coherent if they have:

Difficulty: Easy

A:

Same amplitude

B:

Same wavelength

C:

Definite phase relation with each other

D:

None

To observe interference of light, the condition, which must be met with is that the sources must be:

Difficulty: Easy

A:

Monochromatic

B:

Phase coherent

C:

Both of above

D:

None

Continue studying